工程总承包合同变更包括合同价格调整和工程变更。有的工程变更可能不会导致合同价格调整,有的合同价格调整也不一定由于工程变更引起。不管哪一种情形的合同变更,都有可能涉及总承包合同各方或某一方的利益。在工程总承包试点项目总承包合同条件中,设定类似的变更与调整条款,而且不同项目存在一定的差异性,也因此反映出变 EPC contract changes include contract price adjustment and engineering changes. Some engineering changes may not lead to contract price adjustments, and some contract price adjustments may not necessarily be caused by engineering changes. In either case, contract changes may involve the interests of all parties or parties to the general contract. In the project general contracting pilot project general contract conditions, set similar changes and adjustments, and different projects there are some differences, and therefore reflects the change